The NUCLEON KR-1i Hybrid Back Protector Insert is CE certified Level 2 to the latest back protector standard revision (EN1621-2:2014).
Fusing together a lightweight, perforated hard shell and energy absorbing foam, this hybrid protector insert offers excellent impact resistance while being flexible and anatomically contoured.
With its innovative cooling airflow channel system the NUCLEON KR-1i Hybrid Back Protector Insert offers optimized levels of protection and comfort for sport and street riding.
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| Alpinestars Nucleon Back Protector Insert Size Chart for Leather Gear |
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| Alpinestars Nucleon Back Protector Insert Size Chart for Textile Gear |
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Back Protector
This back protector is awesome. I don’t even know it’s there except for the protection. Definitely recommend.
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Good back protector
The back protector is certainly much better than what typically comes in the riding jacket. I got a medium size back protector and fits perfectly in my Alpinestars Jaws Jacket size 42. I certainly recommend this back protector if the ones that comes in a typical riding jacket is just a piece of foam.
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nucleon has your back !
the kr 2i really enhances my alpinestars jaws jacket , good tight fit in rear pocket , kr 2I is very soft and very flexible .. I prefer this to my bionic air protector and my dainese g1 protector .. solid investment !
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